With the temp in the upper 40's and with my "modified" version of the new M55 confection blower installed but untested by my dealer (lol), I had to make sure it worked OK and report on the noise level....good and bad! First the bad news. Fan 4 and 5 are unacceptable noise wise. It sounds like I am running a large room AC without the compressor on. Forget talking/listning or listning to TV...No way Now the good news! If it's 20-30 below zero and the house is cold, these two settings may come in handy as they will push a TON of hot air very quickly. This will work OK when the wife is not home and I need heat fast! What I call the default fan setting of 3 is still louder than with the old fan BUT again pushes considerably more air. I will have to see if my wife objects. I tkink my new fan setting for most of the time will be on level 2 as it pushes more air than the old #3 and is about the same in sound. Even fan 1 pushes quite a bit of air. I only had the stove on for less than two hours, but there was zero heat build up around the top control panel. I don't think there will be any overheating using the hot Vermont pellets this year! Thanks, Bill